Understanding Physical and Chemical Parameters of Ocean Water Using CTD Profiles
Overview
A focus of the PolarTREC Southern Ocean Diatoms expedition was to collect water samples and physical profile data using oceanographic technology. Oceanographers rely on the real-time data transferred from the water column to the ship-based computers using a CTD sensor. The CTD measures conductivity (salinity), temperature and depth
This presentation is designed to supplement an eighth grade science unit on polar ice but could easily be used for other audiences. The presentation covers the differences between ice in the Arctic and Antarctica, how ice affects salinity, temperature and currents, an exploration of various ice types and a summary of current research efforts to study polar ice.
Jeanine Gelhaus
This lesson includes a variety of research activities and a lab that all help demonstrate the science behind convection currents.
Objectives
Through the following activities and lab students will discover:
* that temperature and salinity affect the density of fluids (liquids and gases)
* how fluids with different densities interact with each other
Dr. Jacqueline Grebmeier presents her research on recent changes in the biology of the Pacific arctic ecosystem at the 2012 Arctic Ocean Ecosystem Workshop.
Dr. Lee Cooper presents his research at the 2012 Arctic Ocean Ecosystem Workshop in Barrow, Alaska on arctic ocean processes and how these relate to oceans around the world.
This presentation, given by Matt Druckenmiller at the 2012 Arctic Ocean Ecosystem Workshop in Barrow, Alaska presents information on both the science and local knowledge of ice conditions off the coast of Alaska. His research considers whether a reduction or change in the variability of sea ice has an effect on the feeding patterns and thus body size of the
This presentation, made at the 2012 Arctic Ocean Ecosystem Workshop in Barrow, Alaska outlines the mission of the Alaska Ocean Observing System (AOOS). The AOOS represents a network of critical ocean and coastal observations, data and information products that aid our understanding of the status of Alaska’s marine ecosystem and allow stakeholders to make better decisions about their use of
This presentation by George Divoky from Friends of Cooper Island was given during the 2012 Arctic Ocean Ecosystem Workshop, 18 May – 24 May in Barrow, Alaska. The presentation highlights the shift in food source for the black guillemot seabird on the northern coast of Alaska caused by the loss of summer ice. The presentation describes how the guillemots are
Students will use guidance from the Project Budburst website (http://neoninc.org/budburst/index.php) to make observations and keep records on trees found on the school grounds. While this lesson applies to more temperate locations, similar work is undertaken in the Arctic to monitor changes in the timing of plant phenology. Major phenological events (first leaf, first flower, leaf fall, etc) will
Students will explain, both orally and in writing, a diagram used to illustrate a food web.
Objectives
Students will learn how language is used to communicate and is required to impart knowledge and sustain a healthy, traditional community in a modern world.
Students will learn strategies for communicating complex ideas to an audience.